CN2255031Y

CN2255031Y - Corrugated tube baffle rod type heat-exchanger

Info

Publication number: CN2255031Y
Application number: CN 96213007
Authority: CN
Inventors: 郑建岳
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-30
Filing date: 1996-05-30
Publication date: 1997-05-28
Anticipated expiration: 2006-05-30

Abstract

The utility model relates to a corrugated tube baffle rod type heat-exchanger which is composed of a heat exchange tube and a tube support for fixing the heat exchange tube, wherein, the heat exchange tube is fixed in a shell which is provided with a water inlet, a water outlet, a pollution discharge port and an exhaust port. The cross section of the heat exchange tube is in the shape of double corrugation. A baffle rod is fixed to a baffle ring and thus the tube support is formed. Four-point or three-point of different cross sections of the baffle rod are supported, which determines the shell fluid to use an axial flow method. Thus, the flow resistance force is reduced and a serious viscous flow area can not exist, and thus the corrugated tube baffle rod type heat-exchanger is not easy to scale. The root which can induce vibration is eliminated fundamentally and the effect of anti-vibration is evident, and the heat transfer is intensified. Simultaneously, the utility model has the advantages of high heat transfer coefficient of a corrugated heat exchanger, no scaling, long service life, small heat stress, etc.

Description

Bellows rod baffle type heat exchanger

The utility model relates to a kind of chemical industry that is used for, and employed efficient heat transfer equipment in oil and the heat enginnering, particularly shell side are used rod baffle and the tube side bellows rod baffle type heat exchanger of dual damascene shape heat exchanger tube.

Now be widely used in the corrugated tube heat exchanger in the heat enginnering, though advantage such as have heat transfer coefficient height, non-scaling, the life-span is long, thermal stress is little is because of the supporter of heat exchanger tube is that therefore deflection plate also exists flow resistance big and the zone of viscous flow is arranged and defective such as induced vibration is arranged.

The purpose of this utility model is to provide a kind of bellows rod baffle type heat exchanger, except that the advantage with corrugated tube heat exchanger, can also reduce flow resistance, reduces the zone that remains in a standstill, and eliminates induced vibration.

The utility model is achieved in that bellows rod baffle type heat exchanger has entery and delivery port by being fixed on, and the heat exchanger tube in the housing of blowdown, steam drain reaches the fixedly pipe support of heat exchanger tube and forms.And heat exchanger tube is the heat exchanger tube that the cross section is the dual damascene shape, and the pipe support is fixed on the baffling circle by rod baffle and constitutes.

Fig. 1. structural representation of the present utility model.

Fig. 2. pipe supporting construction schematic diagram vertical rod type.

Fig. 3. pipe supporting construction schematic diagram horizon bar type.

Fig. 4. the heat exchange tube structure schematic diagram.

Fig. 5. rod baffle supports 4 of heat exchanger tubes and supports schematic diagram.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

The longitudinal section of heat exchanger tube (4) is to be arranged by circular arc crest, the tangent dual damascene shape of trough.

Housing (1) is a cylinder, and entery and delivery port (10), (2), steam port (3) are arranged respectively on last end face, the bottom surface, relief valve port (5), steam drain (7), sewage draining exit (9), the condensation mouth of a river (8).The baffling circle (12) that rod baffle (11) is weldingly fixed on annular with horizontal direction or vertical direction respectively for thin round bar go up to constitute pipe support (6) or (6) '.

Two types pipe supports (6), (6) ' at a certain distance, be spaced, making rod baffle (11) on it support heat exchanger tube (4) is with face cross section not, 4 or supported at three point mode are carried out, be that the rod baffle (11) that first pipe supports on (6) is the lower end that is supported on heat exchanger tube (4), second pipe support (6) ' on rod baffle (11) be the left end that is supported on heat exchanger tube (4), rod baffle (11) in the 3rd the pipe support (6) is the upper end that is supported on heat exchanger tube (4), the 4th pipe support (6) ' on rod baffle (11) be the right-hand member that is supported on heat exchanger tube (4), four different cross sections are from last, down, a left side, right, four orientation by that analogy also can be by the left side of three different cross sections from tilting with 4 square supports of the fixing formation of heat exchanger tube (4), right-hand member and lower end are supported heat exchanger tube and are constituted leg-of-mutton supported at three point (figure omits).

This supporting way has determined the shell fluid to flow in the axial flow mode, thereby has reduced flow resistance, also make not exist serious viscous flow to press the territory in the heat exchanger, thereby less scaling.Because of fluid flows in the axial flow mode, fundamentally eliminated the root of induced vibration, obtained remarkable result aspect antivibration, vortex street and fluid that the rod baffle that fluid winding flow is tiny forms flow through the vena contracta effect that the baffling circle is produced, and making to a certain extent conducts heat is strengthened.

When using this heat exchanger, tube side: cold water enters in the heat exchanger (4) from water inlet (10), and Steam Heating is discharged hot water from delivery port (2) then outside managing.Shell side: steam enters heat exchanger shell pass from steam port (3), and after conducting heat, condensed water comes out from the condensation mouth of a river (8), finishes heat exchange.

The utility model is compared with prior art: because heat exchanger has adopted dual damascene shape heat exchanger tube, just has bellows heat transfer coefficient height, non-scaling, thermal stress is few, the advantage that life-span is long, to adopt with different cross section because the pipe that supports heat exchanger tube supports again, 4 or supported at three point mode, rod baffle is contacted with heat exchanger tube, and the shell fluid flows in the axial flow mode, has therefore reduced flow resistance, there is not serious viscous flow zone, thereby non-scaling, and eliminated the root of induced vibration, augmentation of heat transfer.

Claims

1. bellows rod baffle type heat exchanger, have entery and delivery port (10), (2) by being fixed on, heat exchanger tube in the housing (1) of blowdown, steam drain (9), (7) reaches the fixedly pipe support of heat exchanger tube and forms, it is characterized in that heat exchanger tube is the heat exchanger tube (4) that the cross section is the dual damascene shape, the pipe support is fixed on the baffling circle (12) by rod baffle (11) and constitutes.

2. heat exchanger according to claim 1, it is characterized in that thin round bar shape rod baffle (11) is weldingly fixed on annular baffling circle (12) in horizontal direction and go up constitutes pipe and support (6), rod baffle (11) be weldingly fixed in vertical direction baffling circle (12) go up constitute pipe support (6) '.